Its common knowledge that a healthy battery is a must for any utv stereo system to function properly. By simply using our Charger / Maintainer, your Can-Am X3 or Polaris RZR battery will always be at its best to deliver max voltage to your sound system. Simply use the supplied battery harness to connect from your 12 volt battery to your walls outlet, its that easy. This will extend the life of your battery and play louder for longer. We highly recommend this item to all UTV owners to ensure you get the most out of all your electronics.